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2021-10
Why do solar street lamp poles have to be hot-dip galvanized?
What is the principle of hot galvanizing to keep the lamp pole from being corrupted? Anyone who has studied chemistry should know the principle of "sacrificial anode". Zinc is a metal element more active than iron. When the combination of zinc and iron (zinc-iron compound) is corroded to form an electrode, electrons will transfer to iron, thus maintaining iron and sacrificing zinc. At the same time, zinc can easily form a dense oxide layer in the atmosphere, which protects zinc from deeper oxidation. Now there are three anti-corrosion methods for solar street lamp poles: 1. Hot galvanizing and anti-corrosion. At the beginning, solar street lamp manufacturers chose a good galvanizing method. 2, cold galvanizing, anti-corrosion can follow hot galvanizing
2021-10-19
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